myees



(No Model.)

P. A. MYERS.

2 sheets-sheet 1.

MEGHANIGAL MOVEMENT. N0. 333,477.

Patented Deo. 29,1885

2 Sheets-sheet 2.

(No Model.)

P. A, MYERS. MECHANICAL MOVEMENT.

UNITED STATES PATENT OFFICE.

PHILIP A. MYERS, OF ASHLAND, OHIO, ASSIGN OR OF ONE-HALF TO FRANCIS E. MYERS, OF SAME PLAGE.

MECHANICAL MOVEMENT.

SPECIFICATION `forming part of Letters Patent No.333,477,dated December 29, 1885.

Application filed October 6, 1885.

To aZZ whom it may concern:

Be it known that I, PHILIP A. MYERS, of Ashland, in the county of Ashland and State of Ohio, have invented a new and useful Improvement in Mechanical Movements; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention is an improved mechanical movement, and is designed t'or mechanism for operating pumps, churns, and similar devices in which a double piston is used, each part of the piston working independently and alternately with the other, so that while one is lifting the otheris returning. This mechanism is illustrated in the accompanying drawings, in whit'h- Figure l is a perspective view of a pump, the improvement attached. Fig. 2shows the pump and pistons, partly in section, and the mechanism for operating the pistons in side elevation and with the handle raised. Fig. 3 shows the same view as Fig. l with the handle lowered. Y

In these drawings, A represents the lower piston ot' the pump. It is an ordinary tighttting piston,with a valve on its upper surface which works by lifting the water. Below it is a check-valve, B. The lower piston, A, is attached tothe piston-rod C. rIhe upper piston, E, is like the lower, and has a valve, e. It is connected to a tubular piston-rod, F, through which the rod C passes. The tubular rod is connected by a pivot to the inner ends of links ff, which are preferably curved, as shown in Fig. l. These links are pivoted at their outer ends to rocking standards g g, and the ends of these standards are again connected by means of alink, h, similar to the linksf, and the handle k. Handle lc is preferably formed at its pivoted end with a curve, audit and link h are pivoted one to the junction offand g on one side, and the other to the junction of the corresponding parts on the other side. The

link h is pivoted to the handle on a vertical Serial No. 179,136. (No model.)

' line with the pivots which connect the inner -ends of linksff to the upper end of the tubular rod. The rocking standards have free movement toward and from each other. The inner piston-rod ot' the lowerpiston is carried up and connected by pivot to the junction of the handle and link h.

Asshown in Fig. 1,when the handle is raised the lower piston is lifted; but the simultaneous inward movement of the standards y g through the armsff pushes down the tubular piston-rod and the upper piston connected with it. The reverse movement of the handle reverses simultaneously the movement of the piston. and one piston is always descending while the other is rising with its load of water. Thus the pump, though having but one barrel, 'is double-acting. The rods are always maintained in the same vertical line without the aid ot' a pitman-connection.

The saine construction is applicable with out change to action for operating double dashers instead ot' pistons, or any other connection may be made when such double movement is required.

I claim as my inventionl. The combination ot' the double pistons and rods centrallylocated, the combined links connected at their inner ends with the pistons, f

the standards supporting the outerends ofthe said links and the operating-lever, substantially as described.

2. The combination of the central shaft connected with the upper links, the sleeve surrounding said shat't, connected to the lower links, the standards, and operating-lever, as set forth.

In testimony whereof Ihave signed my name to this specification in the presence of two subscribing witnesses.

PHILIP A. MYERS. W'itnesses:

P. P. LEFEVRE, F. L.h MIDDLE'roN. 

